Move lsp config to local file structure

.config/nvim/lsp/turtle_ls.lua

@@ -0,0 +1,39 @@
+---@brief
+---
+--- https://github.com/stardog-union/stardog-language-servers/tree/master/packages/turtle-language-server
+--- `turtle-language-server`, An editor-agnostic server providing language intelligence (diagnostics, hover tooltips, etc.) for the W3C standard Turtle RDF syntax via the Language Server Protocol.
+--- installable via npm install -g turtle-language-server or yarn global add turtle-language-server.
+--- requires node.
+
+local bin_name = 'turtle-language-server'
+local bin_path = os.getenv 'NVM_BIN'
+local full_path
+if bin_path == nil then
+  local paths = {}
+  local sep = ':'
+  if vim.fn.has 'win32' == 1 then
+    sep = ';'
+  end
+  local path = os.getenv 'PATH'
+  if path ~= nil then
+    for str in string.gmatch(path, '([^' .. sep .. ']+)') do
+      paths[#paths + 1] = str
+    end
+  end
+  for _, p in ipairs(paths) do
+    local candidate = table.concat({ p, bin_name }, '/')
+    if (vim.uv.fs_stat(candidate) or {}).type == 'file' then
+      full_path = candidate
+      break
+    end
+  end
+else
+  full_path = table.concat({ bin_path, bin_name }, '/')
+end
+
+---@type vim.lsp.Config
+return {
+  cmd = { 'node', full_path, '--stdio' },
+  filetypes = { 'turtle', 'ttl' },
+  root_markers = { '.git' },
+}